<template>
	<div class="login_container">
		<div class="login_box">
			<!-- 头像区域 -->
			<div class="avatar_box">
				<img src="../assets/logo.png" />
			</div>
			<!-- 登陆表单区域 -->
			<el-form ref="loginFormRef" :model="loginForm" :rules="loginFormrules" label-width="0px" class="login_form">
				<!-- 用户名 -->
			  <el-form-item prop="username">
			    <el-input v-model="loginForm.username" prefix-icon="el-icon-user-solid"></el-input>
			  </el-form-item>
			  <!-- 密码 -->
			  <el-form-item prop="password">
			    <el-input v-model="loginForm.password" prefix-icon="el-icon-s-goods" type="password"></el-input>
			  </el-form-item>
			  <!-- 按钮区域 -->
			  <el-form-item class="btns">
			    <el-button type='primary' @click="login">登陆</el-button>
			    <el-button type='info' @click="resetLoginForm">重置</el-button>
			  </el-form-item>
			  </el-form>
		</div>
	</div>
</template>

<script>
export default{
	data() {
		return{
			// 登陆表单对象
			loginForm: {
				username:'admin',
				password:'123456'
			},
			// 表单验证规则
			loginFormrules:{
				// 用户名
				username:[
				{ required: true, message: '请输入登陆名称', trigger: 'blur' },
				{ min: 3, max: 10, message: '长度在3 到 10 个字符', trigger: 'blur' }
					        
				],
				// 密码
				password:[
					{ required: true, message: '请输入登陆密码', trigger: 'blur' },
					{ min: 6, max: 15, message: '长度在6 到 15 个字符', trigger: 'blur' }
				]
			},
		}
	},
	methods:{
		// 重置登陆表单
		resetLoginForm() {
			// console.log(this)
			this.$refs.loginFormRef.resetFields();
		},
		// 判断登陆表单正确发起请求
		login() {
			this.$refs.loginFormRef.validate( async valid =>{
				if(!valid) return;
				const {data:res} = await this.$http.post("login", this.loginForm);
				// console.log(res);
				if(res.meta.status!==200) return this.$message.error('“登陆失败');
				this.$message.success('登陆成功');
				
				// console.log(res)
				// 将登录成功之后的token, 保存到客户端的sessionStorage 中
				window.sessionStorage.setItem("token", res.data.token);
				// 通过编程式导航跳转到后台主页,路由地址是/home
				this.$router.push('/Home')
			});
		},
		
	}
};
</script>

<style lang="less" scoped="scoped">
	.login_container{
		background-color: #2b4b6b;
		height: 100%;
	}
	.login_box{
		width: 450px;
		height: 300px;
		background-color: #fff;
		border-radius: 3px;
		position: absolute;
		left: 50%;
		top: 50%;
		transform: translate(-50%,-50%);
	}
	.avatar_box{
		width: 130px;
		height: 130px;
		border: 1px solid #eee;
		border-radius: 50%;
		padding: 10px;
		box-shadow: 0 0 10px #ddd;
		position: absolute;
		background-color: #fff;
		left: 50%;
		transform: translate(-50%, -50%);
		img{
			width: 100%;
			height: 100%;
			border-radius: 50%;
			background-color: #eee;
		}
	}
	.login_form{
		position: absolute;
		bottom: 0;
		width: 100%;
		padding: 0px 20px;
		box-sizing: border-box;
	}
	.btns{
		display: flex;
		justify-content:flex-end ;
	}
</style>
